This is a major Homa of Lord Shiva. Shiva has eleven forms of Rudra. In this Homa all the 11 Rudras are worshiped. After the sthapana avahana etc., Mahanyasam is recited. Then Rudra Trishati is recited. This homa is performed by 11 pundits and each pundit recites Sri Rudram 11 times – i.e. total 121 times Rudrajapa. Abhishekam is done to each of the 11 Rudras with all the 11 dravyas prescribed. Their 11 consorts are also worshiped . After the pooja Homa is performed with the prescribed ingredients and 1/10 the number of japas done in the pooja are repeated. It ends with poornahuti and shanti paath.
Normally apart from the 11 reciting pundits 2 more extra pundits are included in the homa to look after the continuous process of abhishekam and passing the materials plus in case a pundit takes a break to drink water etc as it takes about 7 hours total.
It is an excellent Homa for all round shanti and success in all undertakings. It will be done in your name and with your sankalpa, i.e., the specific purpose for which you are getting the pooja performed. This Homa can be performed exclusively for you. A group of people/families can also order it jointly